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How to Make Seed Raising Mix?

Published in Gardening Soil 2 mins read

To make seed raising mix, combine coco coir or peat moss, vermiculite or perlite, river sand, worm castings (or compost), following the proportions outlined below.

Here's a simple recipe for creating your own seed raising mix:

Ingredients:

  • 2 parts coco coir or peat moss
  • 1 part vermiculite or perlite (or a combination of both)
  • 1 part river sand
  • ½ part worm castings
  • ½ part finely sifted compost

Instructions:

  1. Gather your ingredients: Ensure you have all the necessary components ready.
  2. Combine the ingredients: In a large container, thoroughly mix together the coco coir or peat moss, vermiculite or perlite, and river sand.
  3. Add the worm castings and compost: Incorporate the worm castings and finely sifted compost into the mixture. If you cannot find worm castings, double the amount of compost.
  4. Mix well: Ensure all the ingredients are evenly distributed throughout the mix.
  5. Moisten lightly: Lightly dampen the mix with water, ensuring it is moist but not soggy.

Ingredient Breakdown and Purpose:

Ingredient Purpose Alternatives
Coco Coir/Peat Moss Provides moisture retention and aeration. Sphagnum peat moss
Vermiculite/Perlite Improves drainage and aeration. Horticultural sand
River Sand Enhances drainage and provides weight to anchor seedlings. Coarse sand (ensure it's washed to remove salts)
Worm Castings/Compost Provides nutrients to seedlings. Well-rotted manure (use sparingly)

Tips for Success:

  • Sifting: Sifting your compost helps remove large chunks that can hinder seedling growth.
  • Moisture: The seed raising mix should be moist but not waterlogged.
  • Storage: Store unused mix in an airtight container.
  • Sterilization (optional): If you're concerned about damping-off, you can sterilize the mix by baking it in the oven at 180°F (82°C) for 30 minutes. Let it cool completely before using.

By following these simple steps, you can create a seed raising mix that will provide your seedlings with the perfect environment to thrive.